or chiefly Brit  mar*su*pi*al*ise  vt, -ized  or chiefly Brit  -ised  -iz*ing  or chiefly Brit  -is*ing  :  to open (as the bladder or a cyst) and sew by the edges to the abdominal wound to permit further treatment (as of an enclosed tumor) or to discharge pathological matter (as from a hydatid cyst) .
 
 
 
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